Container closure



May 1935- v A. A. SAALBACH I 2,001,748

CONTAINER CLOSURE Filed March 25, 1931 INVENTOR ATTORNEY Patented May21, 1935 UNITED "STA S CONTAINER CLOSURE Arthur Saalbach, East Orange,N. J., assignor to American Gan Company, New York, N. Y., a corporationof New Jersey Application Mareh23, 1931, Serial No. 524,563

9 Claims. (01. 220-46) The present invention relates tocontainer clo-'sures and has more particular reference .to 010- sures wherein thecontainer coveris detachably engaged with the, body, and a sealing jointis obtained therebetween by an interposed gasket.

In the packagingof white lead and other bulky and heavy commodities, ithas been generally the custom to employ containers of sheet metal ofsuitable gage and closed by a cover or closure member fitting tightly atthe mouth of the container body and locked in place either by engagementof the parts or by a separate member. A gasket such, for example, as arubber tube,-has not infrequently been employed for compression betweenadjacent parts of the cover and body. Such tubular gasket, in accordancewith prior practices has usually been glued or cemented to the cover. a

Covers for such purposes must be shipped from 1 their place of origin,the can manufacturer, to their place of use, the paint packer, andincident to such handling are subjected, more or less, to bumps, knocksand other strains of shipment which often dislodge and loosen thegaskets from their cemented seats on the cover. The packer, as a result,receives the cover without a gasket. In some rare cases these tubulargaskets have been ,used as separate members and separate covers andgaskets come into the hands of the packer. The assembling operationbyhim requires individual and somewhat carefulpositioning and isunsatisfactory and expensive. t

'The principal object-of the present invention is the provision of aclosure for a container of the character described to which the gasketis permanently attached to facilitate and insure initial sealing andsubsequent re-sealingx An important object of the invention is. the

' provision of aclosure generally of the kind above described'whereinthe gasket is assembled with, or incorporated in, one or the other ofthe cover or body members, preferably the cover member so that it willnot become separated therefrom but will remain at all times in properposition. So constructed and arranged, the gasket is provided inattached relation by the manufacturerof the container and the packer ofthe commodity need, therefore, only to position the coverupon thecontainer, after filling with the contents.

Another important object of the invention is the provision of a sealingclosure ofthe general character described which conveniently permitspreliminary attachmentof a tubular or other relatively large andflexible gasket to the cover.

. White lead and other commodities packed in containers of this generalcharacter are usually removed by the consumer in relatively smallquantities and the closure employed to seal the contents between suchremovals. The provision of a separate or detachable gasket memberaccordingly has required careful positioningbefore reclosing thecontainer after each opening or has resulted inits abandonment orabsence with-consequent deteriorationof the contents.

Numerous other objects of the invention will be apparent as it is betterunderstood from the 01 lowing description, which, taken in connectionwith the accompanying drawing, discloses apre ferred embodiment thereof.

Referring to the drawing:

Figure 1 is a composite view in perspective of a container, a covermember, and a sealing ring for uniting the cover member to thecontainer, the parts being separated from one another to show theirconstructions;

Fig. 2 is an enlarged fragmentary section of a container and its closuremember, the latter being illustrated in its first inserted position within the open end of the container; 7 V

Fig. 3 is a view similar to Fig. 2 illustrating the container closuremember furtherinserted within theopen end of the container; and

Fig. 4 is a view similar to Fig. 2 illustrating the fully sealedposition of the closure parts as held in position by a sealing ring. r

The drawing illustrates an embodiment of the present invention, therebeing disclosed a container comprising a can body I l and a bottom endI2 secured thereto in any suitable manner. The body, ll may be reducedin diameter at its upper end to provide a neck l3 havingits outer edgeformedinto an outwardly extending semi-circu-. lar curl l 4 whichpreferably terminates in a horizontal ledge l5 extending inwardly andabutting the outer wall of the can body. 3

This type of container is largely used for the packing of white lead,paint and similar relatively heavy materials and in such'a container itis highly desirable to provide a tight seal between the body anditscover closure member. An initial sealing of these parts just after thecontainer is filled with its contents puts such a filled container incondition for shipping or other distribution to the consumer andsubsequent sealing of these parts, after the container has been opened,prevents drying out of the paint, lead or other contents during itsconsumption.

A preferred form of closuremember is illustrated as a drawn cover, l6provided with a vertical annular drawn friction wall [I which merges 2adjacent its lower region into a circular panel I 8 and above into anoutwardly projecting flange I9. The outer periphery of the flange l9terminates in a crimped or hooked edge 2| which tightly engages atubular gasket 22 formed of rubber or other suitable material. Thistubular gasket when in its clamped position in the edge 2i issqueezedtogether along an annular outer wall as illustrated in Figs. 2to 4 inclusive.

Such a connection between't'he cover andgasw ket holds the latter at alltimes in proper position to effect a seal when the cover is used as aclosure for the container, this gasket'being permanently secured to thecover. There is, therefore, no danger of the gasket becoming lost ormisplaced and no danger of making an imperfect closure by attempting toclose the cover mem- 1 her without a gasket.

In the sealing operation, the cover it is inserted within the upper endof the container body I I andforce'd downwardly until its tubular'gasket22 is pressed against the curl M of the body, the final assembledposition being illustrated in Fig. 3. The cover and body may ;then beunited, a ring 25 being preferably used for this purpose. *Such a ring25 (Fig. l) is of inverted U-shape or channel form in cross-section,being prefer- ,ably'drawn or otherwise ionhed from a strip of sheetmaterial. This form; of ring 25 may have ends 26 which extend adjacentone another prior to application of the ring to the container. Such aring 25 embodies" an inner wall 2'! which terminates in a curl'28 and anouter wall 29 spaced from and parallel to the wall 21'. When applied tothe container body and its assembled cover member (Fig. 4) the wall 21fits inside of the wall I? of the cover and the wall 29 fits over andoutside of the curl I4 and gasket 22. The ends 26 of such a ring in thisassembledposition are overlapped in the usual manner.

, The outer end of the wall 29 is curled at 3i and afterthe ring hasbeen fully applied to the container body and cover, this outer part ofthe Wall is bent inwardly and beneath the wall I5 of the body (Fig. e)This finally sealedposition tightly holds the cover It within the end ofthe can body II and holds the gasket 22 closely compressed between thecover wall It and the can body curl M. This gasket closes any spacesbetween these parts and provides an efficient seal or joint. Such aseal, while being tight may nevertheless be easily broken when itis-desiredto open the container and gain access to its contents bymerely stripping off the sealing ring 2 5 in the usual manner. 7

The use of such a tubular gasket 22 provides maximumresiliency andeffects a highly-efficient joint or seal; ,This gasket, being secured atall times with the covergIB, is always in proper position to eifect theseal whenthe cover andicon tainer body havebeen brought into propersealingrelationship. g, V g

It is thought that the invention and many of its attendant advantageswill be understood from the foregoing description, and it will beapparent that various changes may be made in the form, construction andarrangement of the parts without departing from the spirit and scope ofthe invention or sacrificing all of itsmaterial advane tages, the formhereinbefore described being merely a preferred embodiment thereof. Idm 1. Acontaine'r', comprising abody member hav-v ing a curl, a closuremember provided with a 75 flange, and an annular gasket round in crosssection secured to said closure member by crimping engagement with itsflange, said gasket being confined between said closure flange and saidbody curl when said closure member is in sealing position on said body.

2. A container closure for sealing the open end of a container,comprising a closure member provided with a flange, and an annulargasket round in cross section secured to said closure member by crimpingengagement with its flange.

3. A container closure for sealing the open end of a container,comprising a closure member provided with a flange, and a tubularannular gasket having a portion of its adjacent walls at an outerperiphery thereof pinched into crimping engagement with said flange andholding said gasket permanently on said closure member.

4. The combination of a container, a cover adapted to be compressedthereon, and an annular tubular gasket clamped at its outer portion tothe cover and free relative to the cover at its inner portion.

5. A container closure for sealing the open end of a container,comprising a cover member having an outwardly projecting flange, anannular gasket substantially coextensive with said flange, said gasketbeing of substantial thickness and adapted to be permanently held withinsaid flange by crimping the marginal edge of the flange over a marginaledge of the gasket, thereby compressing said gasket edge and leaving theopposite inner gasket edgefree and uncompressed and pendent from theflange before the closure is applied to a container.

7 6. A container closure for sealing the open end of a container,comprising a cover member having a transverse sealing flange adapted tooverlie the top edge of a container body, an annular gasket adapted tolie within said flange, said gasket having a pendent portion and anattaching portion permanently held under said flange by integralportions of said flange crimped over a marginal edge of the gasket,thereby compressing said gasket at the point of crimping and leaving thependent portion of the gasket free and uncompressed under said flangebefore the closure is applied to a container, the pendent portion of thegasket being of greater thickness than the two thicknesses of the coverflange where the gasket it attached.

7. The combination or" a container member and a closure member havinggasket compressing parts and an annular gasket having a free portionsubstantially round in cross section and a flattened portion permanentlysecured to one of said members by a part crimped thereabout.

8. A container closure, having a substantially flat outwardly extendingmarginal flange, and an annular gasket substantially coextensive withsaid flange and having an exposed portion circular in cross section,said gasket further including a flattened portion interlocking at oneside with the edge of said flange. Y

9. The combination of a can body having a closure flange, a can endadapted to fit within said body, and a gasket the outer portion of whichis permanently secured to the peripheral edge of the can end before itsapplication to the body, said gasket having an inner freely dependingportion terminating near the can body Wall and being adapted to becompressed in annular form between the top side of the flange of the canbody and the underside of the can end when the can end is applied to thecan body.

ARTHUR A. SAALBACH;

